Give two reactants in which the following product might be formed: a. calcium phosphate
b. barium sulfate

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.